Posts by Cthulhu
Sometimes while hiking/trekking/whatever I practice urbex (in random buildings, factories, farms, tunnels, the usual), and I'm aware of the risks to my health caused by toxic gas, asbestos, lead an...
I searched deep into the "interwebs" and this is the best answer I could get. It's from UER, one of the biggest online urbex communities. Differences between respirators Respirators are masks ...
Answer
